Permanent magnet synchronous motor capable of actively controlling rotor vibration
A permanent magnet synchronous motor, rotor vibration technology, applied in the direction of synchronous machine, synchronous machine parts, electrical components, etc., can solve the problem that the reliability problem has not yet been proven, and achieve convenient implementation, prolong service life, reduce Effect of Small Vibrations and Noises
Inactive Publication Date: 2009-09-30
ZHEJIANG UNIV
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the active bearing structure can realize the active control of the rotor vibration of the permanent magnet synchronous motor, its reliability problem has not been proved due to the modification of the bearing structure of the traditional permanent magnet synchronous motor.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The present invention will be further described below in conjunction with accompanying drawing.
[0021] by figure 1 Take the three-phase permanent magnet synchronous motor shown as an example. There are two sets of independent windings installed in the 8 slots of the A-phase stator core, one is the torque winding N1 with 2 pairs of poles, and the other is the control winding with 1 pair of poles. N2, the torque windings are distributed and installed on the lower layer of the salient poles of the stator to generate electromagnetic torque to rotate the motor, and the control windings are distributed and installed on the upper layer of the stator salient poles to generate the control force for actively controlling the vibration of the rotor. Alternatively, the control winding may be installed on the lower layer, and the torque winding may be installed on the upper layer. The specific distribution of A-phase torque winding and control winding is shown in Table 1, and the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a permanent magnet synchronous motor capable of actively controlling the rotor vibration, which comprises a rotor, a stator and a bearing, wherein a stator core is provided with two sets of independent windings, one set of the winding is a torque winding for generating electromagnetic torque, while the other set is a control winding for generating control force; and the difference of the number P of pole-pairs of the two set of the windings is 1. The motor generates enough control force to perform online real-time control on the vibration of the rotor the permanent magnet synchronous motor by controlling the control winding according to the situations of the rotor vibration, has convenient implementation, can effectively reduce the vibration and noise of the rotor of the permanent magnet synchronous motor, improve the working accuracy of the rotor of the permanent magnet synchronous motor, prolong the service life of the bearing and improve the operating performance.
Description
technical field [0001] The invention relates to a permanent magnet synchronous motor, in particular to a permanent magnet synchronous motor capable of actively controlling rotor vibration. Background technique [0002] In addition to converting electrical energy into mechanical energy as a general power unit, the permanent magnet synchronous motor is also a unit with special functions in many occasions, such as the electric spindle of a machine tool, which is a processing that combines the energy conversion function of the motor with the output end. A functional part whose functions are integrated together. In these multifunctional components, the vibration of the rotor can seriously affect the function of the system, so very strict requirements are placed on the vibration of the motor rotor on these components. [0003] The vibration of the permanent magnet synchronous motor rotor has many factors, mainly caused by the mechanical excitation force generated by the mass imba...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H02K21/00H02K21/02
Inventor 祝长生周丹
Owner ZHEJIANG UNIV